telemetry: Fixed sources of variance in rasterize and record measurement.
- Memory management policy used to be updated when debug state changed -> fixed.
- Only count high-res tiles, because low-res tiles are not required for activation
  and therefore increase variance.
- Moved timeline marker into RAF to avoid rare race condition.
- Changed metrics from seconds to milliseconds.

R=nduca@chromium.org, reveman@chromium.org
BUG=280638

Review URL: https://codereview.chromium.org/25597002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226334 0039d316-1c4b-4281-b951-d872f2087c98
Early exit for GetMachineStatistic() call

BUG=302798
R=oshima@chromium.org

Review URL: https://codereview.chromium.org/25629002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226335 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226335
Remove WGC3D::width(), height(), reshape() implementations

These get removed from the interface in
https://codereview.chromium.org/25450002/ as they are not used.

BUG=181120

Review URL: https://codereview.chromium.org/25455002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226336 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226336